Vintage Signed BSK Orchid Flower Pin Rhinestones

This vintage orchid pin was made by BSK (1948 to 1983). It's heavy cast gold-tone metal, white-washed with a pearly enamel on the gold leaves.
In the center, is a cluster of blue Aurora Borealis crystal rhinestones.

The pin is good-sized at 2 1/2 by 2 3/4 inches. The back has a secure rollover clasp and is marked B.S.K. The rhinestones are bright and intact. Excellent vintage condition. Circa 1960s.